quote:The most obvious causal factor is that the surface record (terrestrial) for atmospheric temps is observed at the surface, but the nearest satellite record for surface atmospheric temps is in the low troposphere. However, there are also anomalies that the satellites observe which remain unobserved by the sensing equipment on the surface:
I bet it's simpler than that and related to Urban Heat Island (UHI) related influences, construction process and the fact that satellite is more truly global.